whelan



(No Model.) 2 Sheets-Shet 1. D. WHELAN.

% STOP MECHANISM FOR LOOMS.

No. 368,177. Patented Aug. 9, 1887.

WITNESSES INVENTOR ATTORNEYS.

' N PETERS, PIulo-Lnho ,D. c.

(No Model.) 2 SheetsSheet 2.

' D. WHELAN.

STOP MECHANISM FOR LOOMS. NO. 368,;77. Patented Aug. 9, 1887.

WITNESSES INVENTOR J% BY fl MM L8 ATTORNEYS.

UNITED STATES PATENT Orrrcs.

DAVID \VHELAN, OF ADAMS, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO IVILLIAM B. PLUNKETT, OF SAME PLACE.

STOP MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 368,177, dated August 9, 1887.

Application filed November 6, 185-1.

To all whom it may concern.-

Be it known that I, DAVID IVHELAN, of Adams, in the county of Berkshire and State of Massachusetts, have invented certain new and useful Improvements in Automatic Stop Mechanisms for Looms, of which the following is a full, clear, and exact description, refer ence being had to the accompanying drawings, forming a part of the same.

The object of my invention is to provide a new and improved stop-mechanism attachment for looms, the purpose of which is to stop the loom automatically when a shuttle fails to leave its box, thus preventing shuttles being thrown out of their proper order, or several shuttles being thrown into one box, and the consequent injury to the shuttles and shuttle-boxes.

The invention consists in combining with the common protector mechanism used to stop a loom when ashuttle fails to box, of attach ments arranged in such relation to the protector mechanism that the same will be brought into action to arrest the motion of the loom when a shuttle fails to leave its box.

Reference being had to the accompanying drawings, forming a part of this specification, Figure 1 is a plan View of the front part of a loom provided with my improved stop attachments, parts being in section. Fig. 2 is a cross-sectional elevation of the same on the line as a: of Fig. 1. Fig. 3 is a cross-sectional view of the plane y y of Fig. 2. Fig. 4 is a front view of a portion of the loom, parts being broken away. Fig. 5 is an enlarged detail side view of the bunter and tripping device. Fig. 6 is a sectional plan view of the same on plane .2 z of Fig. 5.

In the drawings, A represents the lay; I the breast-beam; C, the drop-boxes, and E the shuttle-binders. I

F is the 'drivingbelt, which passes over a pulley, G, fixed to the shaft H, G being a loose pulley on the same shaft.

J is a fork through which the driving-belt passes, such fork being borne on a slide, J,

having an arm, J, connected with the shipping lever or handle K, which at its upper end passes through a longitudinal slot, L", in the bracket L on the end of the breast-beam. This slot is provided at its inner end with a Serial No. 147,263. (No model.)

notch, L constructed to receive and hold the upper end of the lever K, the lower end of which is a spring and is secured to the frame of the loom, so that its tension tends to throw the upper or handle end in the direction indicated by the overlying arrow a, Fi 4, when the handle is loosed from the catch L. The lay is connected, as usual, by the rods or pitmen A with the crank -shaft, (not shown,) from which it derives its forward and backward motion. On the front of the lay is pivotally hung the common form of protectingrod M, the fingers N of which are pressed by springs M upon the shuttle-binders E of the sh u ttleboxes. From the protector-rod a dag ger, 0, projects toward the breast-beam.

U is the knockoff bar, which is pivoted to the under side of the breast-beam and bears upon the outer side of the shipping lover or handle K.

These parts compose the well-known de vices for protecting against injury if a shuttle fly from its race or otherwise fail to enter the box toward which it be thrown, it being well understood that if neither of the protector-rod fingers be pushed out by the shuttle being in one of the boxes then at the ends of the race the outer end of the dagger on the protectorrod will be so elevated as to strike the knockoff bar and cause it to loosen the shippingdever, which thereupon will shift the driving belt and stop the loom.

I shall now describe the attachments that embody the special features of the present invention.

A short distance from the dagger O on the protcctorrod is seen red a down wardly-projecting lug, P, which carries a finger, Q, pivoted thereto so as to be capable ofswinging paral- I lel with the lay. To the lower end of this finger is attached a cord or wire, Q, which connects the finger with the sliding arm J, so that this linger will be swung to one side and out of operable relation to the parts (yet to be described) which actuate the shipping-lever and which are set against the tension of a spring and released by this finger, in order that the lay may be moved when the loom is at rest without tripping the belt-shiftin g 1nechanism. In a frame, It, secured to the inner face of the breast-beam and projecting downward-from the same, is a bolt, S, arranged to slide parallel with the beam, Fig. 4, this bolt being pressed in the direction of the arrow I), Fig. 6, by a spring, S, surrounding it and located between the hunter T and a lug on the frame B. This bunter T projects upward from the bolt on which it is rigidly mounted, and rests against the inner end of the knock-off bar U. A trigger, V, is pivoted at one end of the frame R in such position that its lower end can be swung in front of the end of the bolt S when the bolt is pushed back, to hold such bolt in its retracted position. A tripping bar or slide, W-, is pivoted to the lower end of the trigger, and is provided with a guide-rod, d, passing through the lower end of the bracket 9, extending from the frame It toward the lay, around which rod is coiled a spring, h, which presses the trigger over the end of the bolt S. A lug, Z, serves to support the trigger V and relieve its pivot of the pressure exerted by the spring S. The free end of the bar or slide W is provided with an arm, m, which projects at right angles therefrom, so as to pass just behind the 'finger Q on the protector-rod M.

The operation of this mechanism is as follows: The lay swings backward and forward so long as the shuttles continue to be properly thrown, the dagger O passing over the bolt S and to one side of the bunterT without affecting the same, it being understood thatthe bolt is set and the bnnterthereby positioned to one side of the pathof the dagger, as also that during the throw of the shuttle (or while the lay is near the end of its-movement away from the breast-beam) the protector-rod fingers will be pressed inward and the finger Q will thereby be swung toward the breast-beam, so as to'not hit the arm m of the tripping-bar W. In case, however, that for any reason the shuttle to be thrown fail to leave the box it is then in, the shuttle-binder of that box will remain pressed outward, and will thereby keep the finger of the protector-rod also pressed out. This will cause the finger Q to be pressed inwardly toward the lay, so that just before the lay reaches the end of its vibration this finger Q will strike the arm m of the tripping-bar and pull the trigger V away from in front of the bolt S, as indicated by'arrow d, Fig. 5. The bolt S, being thus released, will shoot forward in the inverse direction of arrow Fig. 6, and carry the hunter T into the path of the dagger 0, so that when the lay again vibrates toward the breast-beam the bu'nter will be struck by the dagger. The hunter rocking on the bolt S will bear against the knock-off bar and-cause it to loosen the shipping-lever, whereupon the driving-belt will be shifted to the loose pulley and the loom stopped, as in the caseof the use of the shipping mechanism for stopping the loom when the shuttle fails to box. By'these means the loom is stopped whenever a shuttle fails to leave its box, and the injury to the loom or the .disarrangement or breakage of shuttlethreads, which would otherwise be possible, is prevented.

What is claimed as new is 1. In a loom, the combination, with a lay, shuttle-boxes, shuttle-binders, a breast-beam, a protecting-rod carrying a dagger and having fingers pressing against the shuttle-binders, and a shipping-lever, of a pivoted knock-off bar resting against the shipping-lever, a sliding spring-actuated bolt carrying a hunter, a trigger and a tripping-bar for holding said bolt in place, and a finger on the protecting-bar for operating the tripping-lever, substantially as herein shown and described.

2; In a loom, the combination, with a lay, shuttle-boxes, shuttle-binders, a breast-beam, a protecting-rod carrying a dagger and having fingers pressing on said binders, and a shipping-lever, of a pivotedknock-oif bar, aspringactuated bolt arranged to slide parallel with the breast-beam and held on the same, a hunter on the said bolt, a trigger-lever for locking the bolt in place when not sprung, a tripping bar or slide connected with the trigger-lever, a spring acting on the tripping bar or slide, and a pivoted finger on the protecting-bar, substantially as herein shown and described.

3. The combination, with a lay, shuttleboxes, shuttle-binders, a breast-beam, a protecting-rod, a dagger and fingers on thesame, and a shipping-lever, of the bolt S, the spring S, the bunter T, the frame R, having the bracket 9, the pivoted trigger-lever V, the

tripping-bar WV, supported by the bracket 9, the knock-oft bar U, the sliding arm J, the fork J, the pivoted finger Q on the protecting-rod, and the cord Q, connecting the finger Q with the arm J, substantially as herein shown and described.

. DAVID WHELAN.

Witnesses:

ARNOLD G. POTTER, MICHAEL HATTON.

IOO 

